Thomas Davidson,
Chambers's Twentieth Century Dictionary 1908…
(1908)
“ I′ronwork, the parts of a building, &c., made of iron: anything of iron: a furnace where iron is smelted, or a foundry, &c., where it is made into heavy work.—adj. I′rony, made, consisting, or partaking of iron: like iron: hard.—ns. Cast′-ī′ron, a compound of iron and carbon, obtained directly from iron ore by smelting; Ital′ian-ī′ron, an instrument for fluting linen or lace.—Iron age, an archæological term indicating the condition as to civilisation and culture of a people using iron as the material for their cutting tools and weapons: a period of cruel tyranny ”
